Mock sample for your project: GOV.UK Pay API

Stock and Forex Data and Realtime Quotes

Open, scableable, transparent payroll API.

The Up API gives you programmatic access to your balances and
transaction data. You can request past transactions or set up
webhooks to receive real-time events when new transactions hit your
account. It’s new, it’s exciting and it’s just the beginning.

nFusion Solutions provides REST APIs that deliver enterprise-grade financial data. Data sets include real-time and historical pricing for Spot prices of precious metals such as Gold, Silver, Platinum, and Palladium, exchange rates for major currency pairs, exchange rates for Crypto Currencies such as BTC, ETH, and LTC. All API access requires authentication. In order to be issued access credentials you must first enter into a service agreement with nFusion Solutions and acquire a commercial license. For information on how to obtain a licence take a tour of our products or email [email protected].

This is a Billingo API v3 documentation. Our API based on REST software architectural style. API has resource-oriented URLs, accepts JSON-encoded request bodies and returns JSON-encoded responses. To use this API you have to generate a new API key on our site. After that, you can test your API key on this page.

A developer friendly API to help your business achieve VAT compliance

Storecove API

The Bank Feeds API is a closed API that is only available to financial institutions that have an established financial services partnership with Xero. If you're an existing financial services partner that wants access, contact your local Partner Manager. If you're a financial institution who wants to provide bank feeds to your business customers, contact us to become a financial services partner.

These endpoints are related to managing authentication tokens and identity for Xero API

Introduction
The Xero Accounting API is a RESTful web service and uses the OAuth (v1.0a) protocol to authenticate 3rd party applications. The Accounting API exposes accounting and related functions of the main Xero application and can be used for a variety of purposes such as creating transactions like invoices and credit notes, right through to extracting accounting data via our reports endpoint.

Overview
Tradematic Cloud is a trading infrastructure for building investment services.
It’s a trading engine + API + ready-made adapters to stock and forex brokers, crypto exchanges, and market data providers.
You can use it as a cloud API, or you can deploy it on your servers.
How to use Tradematic Cloud API
Sign up at tradematic.cloud. After signing up, you will receive your API key.
Authorization
Add the 'X-API-KEY' header with your API key to each request.
Examples of writing code with Tradematic Cloud API
Examples are available at tradematic.cloud.
Swagger (.yaml) File
Swagger (.yaml) file can be found here.